AU982022A - Improvements relating to impulse transmitters, for automatic and semiautomatic telephone systems - Google Patents

Improvements relating to impulse transmitters, for automatic and semiautomatic telephone systems

Info

Publication number
AU982022A
AU982022A AU9820/22A AU982022A AU982022A AU 982022 A AU982022 A AU 982022A AU 9820/22 A AU9820/22 A AU 9820/22A AU 982022 A AU982022 A AU 982022A AU 982022 A AU982022 A AU 982022A
Authority
AU
Australia
Prior art keywords
automatic
improvements relating
telephone systems
impulse transmitters
semiautomatic telephone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU9820/22A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Filing date
Publication date
Application filed by Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Publication of AU982022A publication Critical patent/AU982022A/en
Expired legal-status Critical Current

Links

AU9820/22A 1922-11-08 Improvements relating to impulse transmitters, for automatic and semiautomatic telephone systems Expired AU982022A (en)

Publications (1)

Publication Number Publication Date
AU982022A true AU982022A (en) 1923-04-18

Family

ID=

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